Finding the Fourth Proportional to 505,260.68, 757,445.12 and 205,991.60
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Solution
The fourth proportional to 505,260.68, 757,445.12 and 205,991.60 is: 308,805.61
Step by Step Solution
- Step 1: Write the proportion equation
505,260.68 : 757,445.12 = 205,991.60 : x - Step 2: Convert to fraction form
505,260.68/757,445.12 = 205,991.60/x - Step 3: Cross multiply
505,260.68x = 757,445.12 × 205,991.60 - Step 4: Simplify right side
505,260.68x = 156,027,331,151.03 - Step 5: Solve for x
x = 156,027,331,151.03/505,260.68 - Step 6: Final answer
x = 308,805.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.